Granite Overhang Support Guidelines

The size of your granite support legs and brackets will be based on your overhang.

Granite overhang support guidelines.

Granite countertops are one of the preferred material styles because of the durability of the natural stone. Check with your granite supplier to see what they recommend. An overhang is the distance something can extend without the need for support. Granite thickness granite tops with a thickness of 3 cm can have an 8 10 inch overhang without additional supports.

How to support a granite countertop overhang. Opinions vary on this topic but since the weight of granite can cause it to crack making sure you have the proper support is essential. How far can granite overhang before it needs support. In this case an 8 or 10 deep bracket is called for.

While traditionally countertops are set. Typically anything over 10 overhang dimension needs support with either brackets or posts. 3 4 thick granite with a 5 8 or 3 4 plywood subtop will cantilever 12 without problems. If your granite top has a 2 cm thickness we recommend attaching a support system should the overhang exceed 6 inches.

Bar overhangs typically require some form of additional support to prevent future problems. Final determination on bracket requirements and spacing should be recommended by your fabricator based on the following factors. The length of granite overhang available without support depends on a few factors. Check out our previous article on granite spans.

The question for homeowners wanting to install granite is. How to add support brackets to existing countertops. For example if your granite overhangs 12 inches past your 2 x 4 knee wall subtract 2 4 for the desired length of your support bracket. Most granite fabricators will recommend support brackets on overhangs over 12 however solely based on the overhang amount.

My client has decided on 3 cm granite countertops and if possible would like the curved bartop piece cantilevered with no or little visible support. Been doing this for many years without a call back. As i ve designed it so far the curved piece is 123 long 24 wide at the widest part of the curve 8 wide at the ends and overhangs the sink side of the short wall by 2 inches and the other.